chew the rag
man talk, netotiate by pulling each other through the mud as if tugging on a rag that attached to your nashing teeth.
As two male dogs may tug, or "chew the rag" between them. Fighting to gain an advantage by moving up the rag, or rope.
chewing rag
When your underpants decide that its too cold outside and retreat to a place thats warmer - your arse crack.
Jesus, these pants must have shrunk in the wash or something, i'm chewing rag a treat!